signal-sampling-MATLAB

该文档详细描述了FFT的物理意义，并附有一个正弦波叠加的例子和相关Matlab程序.(The document describes the physical meaning of FFT in details,with a superimposed sine wave and related Matlab examples )

Chapoly 通过求矩阵特征多项式的根来求其特征值. pmethod幂法求矩阵的主特征值及主特征向量. rpmethod瑞利商加速幂法求对称矩阵的主特征值及主特征向量. spmethod收缩法求矩阵全部特征值. ipmethod 收缩法求矩阵全部特征值 dimethod位移逆幂法求矩阵离某个常数最近的特征值及其对应的特征向量 qrtzQR基本算法求矩阵全部特征值. hessqrtz海森伯格QR算法求矩阵全部特征值. rqrtz瑞利商位移QR算法求矩阵全部特征值. (Chapoly characteristic polynomial by the root of a matrix to find the eigenvalues. Pmethod power method of a matrix eigenvalue and the principal eigenvectors. Rpmethod Rayleigh quotient accelerated power method Symmetric matrix eigenvalue and the principal eigenvectors. Spmethod contraction Law of the value of all the characteristics of a matrix. ipmethod contraction method the value of all the characteristics of a matrix inverse power law dimethod displacement from a constant of a matrix eigenvalue and its corresponding nearest feature vectors qrtzQR all the characteristics of the basic algorithm the value of a matrix. hessqrtz Heisenberg QR algorithm is the value of all the characteristics of a matrix. rqrtz Rayleigh quotient shift QR algorithm is the value of all the characteristics of a matrix.)

Discreatization heat transfer two demension equation working

Instructions: Unzip the selected file (A.zip or B.zip) in Matlab current directory (C:/.../Matlab/work is the default one). Type the name of main function on Matlab command window. Now a simple and intuitive GUI should appear. You can use images/data present in data.zip: just unzip them in Matlab current directory.

说明：  附件里的程序是基于matlab实现的二维面阵FFT波束形成(The programm used for 2D planar array beamforming)

有matlab和vc联合编程实现kd树实现过程，附有它们之间转化用的max文件和动态链接库dll文件。(Matlab and vc are the joint programming process to achieve the realization of kd tree, accompanied by their transformation with the max files and dynamic link library dll file.)

说明：  4阵元的lMS和RLS的波束调零算法，可以看到调零后的波束方向图(4 array element of the LMS and RLS Beamforming Algorithm zero, we can see that after the zero-beam pattern)

This file gives the main function for the implementation of the hybridized version of the cuckoo search algorithm by combining it with the Nelder Mead Simplex algorithm. The method is designed to minimize functions with a low number of dimensions in a low number of iterations.

利用双线性变换法，设计一个0.4dB截止频率为10kHz且在30kHz处有最小阻带衰减为50dB的数字巴特沃兹低通滤波器，其抽样率为100kHz。利用教材（4.35）式求解原型模拟滤波器的阶数，并利用Matlab的M文件buttap设计模拟原型滤波器。用M文件bilinear将模拟滤波器传输函数变换成期望的数字传输函数。请用Matlab画出其增益和相位响应，并给出设计的具体步骤。(fuck!!!)

说明：  文档中有3个程序。h.264灰度处理程序，DCT变换程序，DCT系数量化程序。(There are three programs in the document. The h.264 gray handler, and DCT transform process, the DCT coefficient quantization process.)